How Deep Should Fence Posts Be Buried


Fiber posts can be finished with solid-body stains or even painted. So here is the issue, we live in NY and we have heard that fence posts should be like 3+feet deep if you are using 8ft long posts (so 3ft below ground and 5 ft above ground). How deep should a fox barrier be on a chicken coop? I found this Q&A on Yahoo Answers and thought it was great information that would certainly help others with their own chicken coop plans. The degree of privacy can be varied by changing the height of the fence. Level and plumb posts making sure the post is flush to the string but not touching. How to install chain link fence posts. But before you decide to put one up yourself, learn how to. This method is effective against wild boars but we lose a little height. the gas line should be at least 30 inches deep. Should I use 12 ft posts buried 4ft deep with the hole being 12 inches wide? Or should I cut posts to 11ft and bury 3 feet. the surface area of the post in the soil is what determines how quickly a fence will tip in the wind. Fence Terms Posts: The 4-by-4 (or larger) boards that are set in concrete and anchored into the ground. Put metal post bases (or metal posts) in the ground and bolt your wooden posts to them. I want to put a gate in the back, reusing the existing planks. For our Steel Board Fence, holes must be dug 9” wide and 41” deep. In order to stop foxes getting into a poultry run, the fence needs to be buried to stop digging and tall enough to stop jumping / climbing. Continue stretching the fence from the corner T-post to the wooden gate post, and secure it there with fencing staples nailed over the wire into the post. Tighten fence and secure with 8″ or 10″ cable ties. A few important steps help insure that the next time you hang a gate on your la. If the post is rotten or snapped then a concrete godfather and 2 coach screws should be used if a new post is out of the question. So, If you need a fence 210 cm height above ground, you should order 245 cm. Set the post on the bottom, or stone, maintain plumb and straight,. Doing it this way the predator digs and hits the wire. or 25% in the ground Flagpoles: should be buried 10% plus 2 ft. Usually, post holes have to be dug deep at least 2 feet down the ground and it should be set in cement or concrete before proceeding to the. "A cage 3 to 4 feet in diameter makes a solid anchor to secure your fence wire and stretch it from," he says. In general, a six foot fence will need a hole that is three feet deep and if the posts are four inches wide, they will need holes that are twelve inches wide. I believe that fence posts should not be set in concrete either but instead set in compacted gravel. Dig terminal post and line post holes approximately 10" in diameter and 30" deep, with sloping sides (Fig. RE: Planting distance from Underground Utilities? The roots of a tree generally spread out at least as far as the spread of the crown - in this case maybe 50' or so - so roots will reach over and under and through the area with the utilities. I agree 2-3ft deep with concrete around the post should be plenty (2ft if it's not too sandy or any chance of water wash out) Think about how much force it would take to move a post sideways that's 2ft in the ground. Post lengths are 7 or 8 feet. A fence that tends to lean shortly after being installed is normally a result of not being deep enough in the ground, or a large enough footing, or. Indiana 811 Fact Sheet How does Indiana 811 work? • Call Indiana 811 at least two full working days (but no more than 20 calendar days) before you dig in Indiana. surrounding the post will not allow for drainage, the concrete will act as a container for water and rot the post. bags per hole. Almost 3′ deep. I think that real smooth post (like galvanized steel that gets used for chain link fence) MIGHT be better gripped by concrete but any kind of wood is better in crushed stone. At least one-third of the post will be buried underground. Your farm or ranch will look amazing with a fence made of #1 uniform diameter treated fence posts. Fence posts are the crucial backbone to any good cattle fence. Because these posts are the backbone, they should be buried deep enough to create a strong and sturdy foundation. It’s likely your post will be at least 1500mm, so you’re looking at 500mm in the ground, or 600mm for a 1. We install our posts a minimum of 36” in the ground and only choose products with posts long enough to go that deep. The dog fence wire doesn't have to be buried at all. Place the post in the hole. However, it should not be buried very deep because that can interrupt the signals. This can be accomplished by extending the mesh with a buried perimeter conductor that is about 1 m outside the fence and bonding the fence and the conductor together at close intervals (so that a person or grazing animal touching the fence will stand on the equipotential surface so created). This is a 1,000 foot roll of Heavy Duty - Solid Core Pet Fence Wire and it's available in Four Thicknesses: 20 Gauge, 18 Gauge, 16 Gauge and 14 Gauge. Fence Post Rot In Concrete Prevention Help | This Old House. Otherwise buy 10 or 12 foot wooden posts if you want 7-8 feet above ground and you want them to stay put. His back yard has a bit of a slope, and it would take too much concrete to pour a slab (read how to pour a concrete shed foundation here). (1) The installation of the fence netting posts should be consistent with the design drawings and coordinated with the road alignment. I had bought all the materials at this time last year, but before we could start the project Damon had landed in the hospital for the first of many operations that culminated in him losing his leg just after Christmas. how deep to dig wooden fence post? the post is 4" x 4" in hard (clay) land. Fence posts normally come in an 8' length and most fence panels are 6' tall. The first thing you should know is that your dog isn’t doing this just to annoy you or to destroy your perfectly manicured lawn. Keep the stringline taut and set at the top of two end posts. How to Dig Post Holes. Dig the first post hole. For the most part they seam to only go down a foot to 18in bit I have put my arm down one that went deeper befor angling out flat. Just a note, this is for support posts only not fence posts. I guess he would really like to use eight foot posts because he's wondering if 43" is enough. Is this deep enough for Canadian weather? I see most contractors do 2 - 2. Measure for each post down the line. -deep trench from the light post to the power source. If so, what are my options. STEP 1 Dig holes approximately 8”- 10” in diameter and 24” deep. depths by 6 inches if the fence is located on slopes of 3H:1V or steeper and the slope is perpendicular to the fence. Deer can be a real problem in a yard or garden. We will need to dig holes about 1 foot deep, mix concrete in a wheel barrow, and pour it into the holes. Generally, your first post should be at a termination point, such as up against your house. The rails are the best cut eleven feet long; and the forward end of each rail should come under the next one that is laid. When you use concrete as a footer to hold up a post, put only on the side and not on the bottom. Now that the post is loosened, the gate is dropping and needs lifted at the "open" end. • Inside the fence corner at a 45-degree angle, attach second T-post to the corner brace. 8m paling fence with exposed posts. When we got here most of the landscaped looked good and survived, but just in the last couple of weeks I noticed that the smallest part of the Mexican Fence Post is looking poorly. Most people who can use a level and a tape measure, look down a fence line to see if it is correctly aligned and are willing to take the time to do the job right are probably qualified to install our ranch fence. If you are not sure, you could also measure the height of the post that is above the ground (or the length of the section if it is broken off) and estimate the amount that is buried. How deep should a fox barrier be on a chicken coop? I found this Q&A on Yahoo Answers and thought it was great information that would certainly help others with their own chicken coop plans. Dig post hole so diameter of the hole is 3 times the width of the post (i. If you want a 6' fence, then you need 7. The auger needs to work in a vertical position. A few important steps help insure that the next time you hang a gate on your la. Rigid wire is the only wire that should be used. Create a trench 4 or 5 inches deep sloping outwards away from the fence posts. Posts should be spaced a maximum of 6 ft apart and driven securely into the ground a minimum of 18 in. Many customers ask 'How deep should I set my fence post?' and the honest answer is that the depth and diameter of any post hole will depend greatly on the style of fence, the area in the country installed, and other variables such as wind load, and digging conditions. I think that real smooth post (like galvanized steel that gets used for chain link fence) MIGHT be better gripped by concrete but any kind of wood is better in crushed stone. This is where it is essential that you had your yard marked for buried utility lines. You don't want to run the risk of hitting pipes or wires underground, so always make this one important call—cannot stress it enough!. How To Install A Fence Yourself. Our experts will help you in choosing the best parking lot sign bases. Step 2 Add about 6 inches of QUIKRETE All-Purpose Gravel into the bottom of the hole. Knowing how deep water, electrical or gas lines should be buried in a yard is a homeowner’s responsibility. As a general rule, if the ground is disturbed soil the hole should be 600mm deep and roughly three times as wide as the post. Installing a fence on sloped ground can be tricky, and while it’s possible to order custom vinyl or chain-link fence panels, most contractors will address the issue on site by installing a stepped design, following the slope of the ground, or leaving a gap at the. Post and rail fences aren't constructed in exactly the same way as a wood privacy fence or an aluminum security fence. How deep should the 8' posts be set, I assume it will need to be 2ft for the 6ft fence (actually 68''). The wire should be 14-gage minimum with maximum mesh spacing of 6-inches. Bury it in PVC to the code depth for your area. A side yard fence placed at least 10 feet inside the lot line can be a solid fence up to 6 feet high. SPACING THE FENCE POSTS As a rule, you should set fence posts about 6' to 8' apart. This is not an either/or rule. For example, if you’re building a fence, plot out exactly where the first set of holes should be before you start digging. A larger post set deeper with additional bracing will be required for heavy gates. All fence shall be chain link fence with a minimum height of forty-eight inches (48”). Using a shovel for this job means making your hole larger than you need, so you. Dig holes 24” to 36” deep. For a 5-foot fence, you'd. For that reason, we decided that building a post and beam foundation would be the best way to go. posts — sort of like a mortise-and-tenon joint. These will keep the posts from twisting or warping before the rafters go up and lock the posts in. Go to Grounding Steps ↑ 8. Post Hole Concrete Calculator Calculate how many yards or how many bags of concrete are needed for a set of post holes by entering the post diameter and hole size. Ideally avoid isolating more than 30% of the effective channel width during periods when stream flows are possible. For that reason, we strongly recommend that you use 6x6s instead, even if your building department does not demand them. How deep should a fox barrier be on a chicken coop? I found this Q&A on Yahoo Answers and thought it was great information that would certainly help others with their own chicken coop plans. Unless you are using unnecessarily large-diameter line posts, your corner or end post should be 150 to 200 percent more than the diameter of your line posts – a minimum of 5 inches in diameter. Fence posts should be buried sufficiently deep in the ground. I immediately say 48" (standard here in Mass for below freeze). How deep should the 8' posts be set, I assume it will need to be 2ft for the 6ft fence (actually 68''). Alternatively gaps below the fence should be filled with stone or soil to ensure that it is fully stock proof. , a 6-foot tall fence would require a hole depth of at least 2 feet). Check to ensure that the lower wire hole is about 10 cm (4 inch) above the ground level (or about 5 cm (2 inch) if the bottom of the fence is be buried). Call before you dig,there might be underground cable,sewer,etc in the path you plan to run. Doing it this way the predator digs and hits the wire. There's two ways you can install a wire dog fence above ground:. This works well for a standard 4 to 6-foot-tall fence. To dig the post holes, use a post hole digger. 80m or 6 foot high fence is 760mm or two foot six inches. Some people will use a lamp post that may already be pre-wired, possibly even already having the lantern attached. Holes should also be dug 10-12 inches wide or about 3 times the width of the post. Place the posts in the holes. Anywho, he called last night and wants to know how deep he should set fence posts. The depth of the trench will be 6 in. How to build a fence: Tips for design, posts, fence panels, and awesome! By Mark • October 28, 2016 Build It , HisFixitUpLife , How-to , Mark's blog , Outdoor Every fence is different and yet, they’re all the same, so how to build a fence is about using these basic tips to get a fence you’ll love. Set your post in the hole. Posts should be peeled, then thoroughly seasoned before soaking in the commonly used oil-type preservative solutions. As you plan your springtime projects or need to mark the location of your underground wire for landscaping, utility work or other digging, your local Invisible Fence® Brand dealer can help. Dig post hole so diameter of the hole is 3 times the width of the post (i. For warmer, damper climates, vinyl is your best material choice, as wood is susceptible to water damage. Part 2 How to set out posts for a paling fence As the major supporting structure of your paling fence, it’s important to set the posts properly. How to install chain link fence posts. Looking for some advice - or is the pressure treated good enough by itself to last me a good long time?. It might be a better idea to upgrade to 4-by-6-inch posts. The only exception to this rule is if you’re installing a split rail fence or a pasture fence which is installed on t-posts. Fence posts: should be buried 1/4 of the overall height of the post for line posts and 1/3 for corner/gate posts Mailboxes: should be buried 2 ft. The top of the fence should be level, and the bottom should be buried at least 6-inches below ground surface. Drill your holes 30 inches deep with the power auger at each "X" and clear the holes with the hand post hole digger. For example, frost can push posts upward, making them less secure. Use a Pos/Neg fence. He put one in each corner first, and I believe he tied some string between the posts to place the other ones in straight lines. each post hole had one and a half barrows of concrete and the gravel board set on concrete as we went along and fence boards dropped in the following morning also how deep are you digging the holes and how much does the slope alter we needed to change the string line every thre or four posts as the bank altered so much. Pack gravel rather than soil around the post to inhibit rot, or set the posts in concrete. If your post is 6-feet tall, you will dig down at least 2 feet. 5 - 2 60lb bags. Fill hole around the post with concrete mix to approximately 2” below grade. How much of a 4 x 4 x 8' fence post I should bury underground for a 6' high fence? Essentially I have a 6' High dogeared picked fence that I'm making. If you have a fence taller than the standard 6ft, then you will need taller posts to go with it. Step 4 - Plant Posts At the mark you made to identify placement of your posts, and without removing the string you've attached as a perimeter, dig six holes that are about 12 inches in diameter and 24 inches deep. Here's why you should start using it. Start at one corner post and dig post hole 8" – 12" in diameter and 26" deep. Vinyl Fence Installation Specifics. Before digging your fence post holes, call 8-1-1, the national Call-Before-You-Dig hotline, to start the process of having all underground utility and communication lines marked on your property. For oak board fencing (1" x 6"), a half-round posts is typically used. It‘s a “floating” footplate because it stays on top of the ground - unpinned. Keep your dog from digging. PASTURE FENCE FIELD PUT UP GUIDE TO FENCE POST INSTALLATION. The posts will need to be buried at least 33% as deep as they are tall (example: an 8′ high fence needs a hole 2. A fence that is 48-feet long will have six to eight posts. Fence posts are the crucial backbone to any good cattle fence. If your post is 6’ or larger, then 30” of the post should be under ground. 1), and help to set your fence posts at a uniform height. Leaning fences is also one of the most common issues people face during the installation process and the main reason of this problem is mostly the setting fence posts that are not buried deep enough. co Existing Swale Drain Permanent Survey Mark direction of fall to levels. The resulting pressure literally "heaves" the fence posts out of the ground over time. But up until now. Rigid wire is the only wire that should be used. Anything dead that is being buried, should be. Yes however, deck posts should not be placed into the ground, rather a concrete pier should be poured and a post bracket should be used. Just a note, this is for support posts only not fence posts. reason for question the vinyl fence post was installed along edge of driveway my property several years ago. Horses tend to use traditional fences as scratching posts, causing the fence to weaken or sag over time. Bottom of the silt fence should be keyed-in a minimum of 12 in. 5 feet deep (to shallow and the will pull free of the ground in heavy winds). The deeper you dig the holes, the more stability your fence has, but you must also purchase longer posts. Go to Grounding Steps ↑ 8. Erect the end straining posts and straining post stays. This fence is not about strength—it is solely about the electrified wires. Installing An Electric Dog Fence Wire Above Ground. When talking about panels, more area is bad however, with your posts, you need more surface area. If they only come in 20' lengths that really messes up my steel quote. The depth of the hole should be 1/3-1/2 the post height above ground (i. Conversely, something that was placed 3-feet deep is only 6-INCHES deep after they scrape off most of the cover. I am also not building a wooden fence, just a light poultry wire mesh. Concrete should at least be used for corner and gate posts, as should any post in loose ground or where there are high winds. If the corners are off-set the rest of the fence will follow. Place support post on top. co Existing Swale Drain Permanent Survey Mark direction of fall to levels. the surface area of the post in the soil is what determines how quickly a fence will tip in the wind. Our fence calculator is designed to help you tackle your next fencing project with ease. Holes should also be dug 10-12 inches wide or about 3 times the width of the post. Our galvanized steel posts are buried approximately 30″ into the ground. How To Install A Fence Yourself. The next day, attach one edge of the metal strap to the fence. The Dos and Don'ts of Setting a Fence Post A well-constructed fence can protect privacy, define your property, and enhance curb appeal. String is stretched tightly and fastened to corner stakes. With all of your post holes dug mix your concrete in your wheelbarrow. Set posts by first adding gravel to the hole, then plumbing and bracing the post in position. Our fence sleeve systems shield posts from rot and fungus. Position the post in the hole and hold it upright, use a spirit level to check that it is vertical. Concrete for fence posts typically comes in 40 and 60 pound bags. As a rule, set fence posts about 6 to 8 feet apart. Anything less than that is based on other factors like manufacturer design and installation specs. Almost 3′ deep. Use this string as a guide to keep the wall straight. How much of the 6' fence post should be burried underground that will support the fence. Don't use any metal brackets on the posts, put the posts right in the. Dig post hole so diameter of the hole is 3 times the width of the post (i. Drive steel fence posts into the ground, and tie a string between them at the height of one cinder block above the ground. I have read if using concrete to slope it away from the post and above grade, so this is what i have done. Make sure that your holes are wide and deep enough. • Inside the fence corner at a 45-degree angle, attach second T-post to the corner brace. This should leave an approximate post height of 54”. Yes however, deck posts should not be placed into the ground, rather a concrete pier should be poured and a post bracket should be used. For the width, you need to make the hole three times the width of the post you intend to use. Don't use any metal brackets on the posts, put the posts right in the. If the distributors buried the cable I. Compare benefits of our system to Invisible Fence® Brand dog fence and see why DogWatch is the obvious choice. How to dig in a decent fence post: 1. I'm sure I heard my neighbour say the fencing contractor View topic - How deep are fence post into the ground?. Fence posts should be buried sufficiently deep in the ground. Before adding your quick set concrete fill the bottom of your post holes with about 2 inches of gravel. ** Compact the base trench making a minimum of two passes with a walk behind plate compactor. An electric fence prevents this behavior, protecting the horse from harm and prolonging the life of the fence. These fence posts are pressure treated. Regardless of fence material and design, one of your goals should be to present a smooth side to the horses. Drop the post in the hole and use diagonal braces to hold it plumb in all directions. The first thing you should know is that your dog isn’t doing this just to annoy you or to destroy your perfectly manicured lawn. How far apart are the posts set from. A 4-inch diameter fence post might be adequate for shorter fencing. Anything less than that is based on other factors like manufacturer design and installation specs. Use your post hole diggers to dig 24″ deep x 18″ wide holes where you’ve pre-marked with your marking spray paint and wooden stakes. I also laid a 6'' x 6' x 10" "skid" across the 10' to add support to the perpendicular 12' spans. Putting Fence Posts Into the Ground Whenever we build new fence using wood posts, setting the posts is usually considered the hardest job. Thanks in advance (This is my first post with many more to come. An electric fence prevents this behavior, protecting the horse from harm and prolonging the life of the fence. (See fig 2) If. There are a few key steps to follow and your results should be very satisfactory. the average wood fence post seems to be a square timber that is a 4-inch by 4-inch post or possibly a 6-inch by 6-inch post. How Deep Should a Fence Post Be? When it comes to digging fence post holes, the depth depends on the height of your fence. Lay chicken wire along the perimeter of the fence line. The following information is from the National Retail Hardware Association. This tool is basically like two shovels facing each other and connected together, it's easy to work by digging the blades in and then seperating the handles to bring the shovel heads together. The resulting pressure literally "heaves" the fence posts out of the ground over time. Line up fence on posts (on the windward side), leaving a gap below the fence (at least 5 inches). In certain cases, engineering may be required. Now your version of a suitable depth and theirs may differ.  Fence panels should be installed so that the bottom of the fence is 2” above the ground level to allow. A fence that tends to lean shortly after being installed is normally a result of not being deep enough in the ground, or a large enough footing, or. Confused or missing somenthing cant figure out how to use the 4 foot sections when you have only a 5 foot post to work with. Rigid wire is the only wire that should be used. How to Hang a Farm Gate/Fence: Add a new level of safety and security to your country property with the installation of a properly hung gate. You should have been made aware where the cable was and you should have had a banksman looking for it when digging. Im hoping that was bad installation in not going deep enough as posts and panels are down. Will a Training Collar help stop this? Dog Containment. Contractors will tell you that a 6-foot wood fence should have its posts buried 2 feet into the ground, but posts for an 8-foot fence should be buried 3 feet deep. , the hole for a 4-- wood post should be about 12 inches wide). The dog fence wire doesn't have to be buried at all. This treatment prolongs the life of wood. You will also need to trim off 30 cm (1 foot) in length to accommodate the height of the fence panels. For rails fixed between posts the rails should be measured at ground level, squared and cut to length. Trim the post’s tops level with each other. Fence posts: should be buried 1/4 of the overall height of the post for line posts and 1/3 for corner/gate posts Mailboxes: should be buried 2 ft. Post should be secured 36 inches deep to avoid cracking in a cold snap. Earth backfill shall be thoroughly tamped. Is there an electric dog fence that can also be used for cats? How Deep Does the Dog Containment Wire Need to be Buried? What Fence should I Use With My Siberian Husky. Set the Corner Posts. Fill hole around the post with concrete mix to approximately 2” below grade. To dig a good post hole, you need to go down a third and up to half of the height of the post height above ground. There are millions of miles of buried utilities beneath the surface of the earth that are vital to everyday living like water, electricity and natural gas. Stretch the fence tightly to the first corner post and attach it with T-post ties. It’s a lot harder to push over a post that’s buried deeply, so always keep that in mind. Eastern White Cedar : Good rot resistance. For example, a 210 cm height fencing buried 35 cm deep, and left 175 cm height above ground. How much of the 6' fence post should be burried underground that will support the fence. Use this string as a guide to keep the wall straight. Do-it-yourselfers occasionally make the mistake of mounting boards on the outside of fence posts, which makes them easy for horses to knock loose. Your Tractor Supply, Southern States, or other local farm supply store should carry these kinds of panels. Crossing low spots requires special precautions to prevent post withdrawal or washout. Place support post on top. Vinyl Fence Post Holes. Depending on where you live, the height of your fence affects whether or not you need prior approval. typical finish post height for a 6’ fence is 74-1/4” to top of post or 73-1/4” to bottom edge of crown cap (if using 8’ posts, the post will be raised to height when adding the concrete). At least one-third of the post will be buried underground. This tool is basically like two shovels facing each other and connected together, it's easy to work by digging the blades in and then seperating the handles to bring the shovel heads together. Each grounding pipe should be around 8 feet deep, but no less than 6 feet. When you use concrete as a footer to hold up a post, put only on the side and not on the bottom. Place the posts central in the holes and attach two braces as shown. I'm sure I heard my neighbour say the fencing contractor View topic - How deep are fence post into the ground?. engineers/slackliners: my wife wants a slackline, how deep to sink the posts? how about using 5″ posts, buried 4ft into the ground? In the past we have just strung a climbing rope. Dig the holes. Gate and corner/brace posts need to be even deeper (40 inches) and if you building a high tensile wire fence add a few more inches depending on your soil type. Before adding your quick set concrete fill the bottom of your post holes with about 2 inches of gravel. I believe that fence posts should not be set in concrete either but instead set in compacted gravel. The depth of the hole should be 1/3-1/2 the post height above ground (i. Alternatively gaps below the fence should be filled with stone or soil to ensure that it is fully stock proof. The holes should be 2ft deep. Care should be taken to avoid underground and overhead utilities. , a 6-foot tall fence would require a hole depth of at least 2 feet). Don’t forget to allow for the width of the posts. As if I wasn’t long winded enough…. Check their alignment with your chalk line and ensure the rails are square. bottom of the fence in hollows or dips. If your fence posts are 8 feet high, then 2 1/2 feet of the posts should go from the bottom of the post hole to the plumb line, and 5 1/2 feet of the post from the plumb line to the top of the fence. The post should be centered in the hole and must be square with the fence line so that when the rails are inserted into place they will parallel the string line. reason for question the vinyl fence post was installed along edge of driveway my property several years ago. - python starter May 1 '15 at 12:30 3 Part of this answer would depend on where you put these poles in the ground and the type of soil. This can be tricky so take it slowly. A 6-foot fence is allowed if the upper 2 feet is at least 50% open construction, such as lattice or chain link. Post will be 53" above ground. Even though vinyl fence is lighter and easier to handle than wood, it's still not a task you should attempt alone. However, it should not be buried very deep because that can interrupt the signals. A larger post set deeper with additional bracing will be required for heavy gates. Plumb the posts with a spirit level and fasten the braces securely. The rails are the best cut eleven feet long; and the forward end of each rail should come under the next one that is laid. Using a little chain pulley to pull them out of the ground would be a lot easier than trying to haul up something buried in concrete. Last week I had the opportunity to help a friend build the foundation for a new shed that will be delivered in a couple of weeks. Post Hole Digger. Before we put wooden fence posts into the ground we would take them to a barrel of oil and dip the ends in about 3 feet. As the sheets are buried deep into the ground, this provides a barrier to weeds growing under the fence and dogs digging out under the fence. How much of the 6' fence post should be burried underground that will support the fence. deep depending on your local weather and soil conditions. You should use the same insulated cable buried in the same trench as you use to carry the hot to the other side. more if the ground is soft. pieces of timber that should be fitted to fencing and span between fence posts to provide the horizontal backing and support for featheredge fence. • Step 2 : Dig a hole at least 24 inches deep, with a diameter that is approximately three times larger than the post width. Concrete should be used whenever a vinyl, aluminum, or chain link fence post is installed. Many fence companies sacrifice strength in order to offer a lower price, and a common way to do that is by using a shorter post to save on material and labor prices. In locations not subject to frequent flooding, use extra length posts set 3-1/2 to 4 feet deep or set posts in concrete to prevent withdrawal (Figure 5). The ledge is as shallow as 2ft in some areas. An eight foot high fence calls for the line posts to be at least 30 inches deep. A 6-foot fence is allowed if the upper 2 feet is at least 50% open construction, such as lattice or chain link. How deep should you set a concrete fence post? I'll shortly be erecting a fence using 7ft 9" posts, my initial plan was to use 1ft gravel boards and 5ft fence panels leaving 1ft 9" to set into the ground. When installing fence posts, it is vital that you set the posts properly to prevent frost heave. When setting the fence posts, make sure about 1/3 of each post is buried in the ground. My gazebo plans required preparation of a 10' x 12' area, with four 6' x 6' posts buried and set in concrete. Pour concrete in the hole around each post and allow it to set to secure the posts in place. proposed silt fence (trenches should not be excavated wider or deeper than necessary for proper silt fence installation).